CN102126293A - Selective laser sintered single-face powder supplying device realized by adopting powder returning groove - Google Patents
Selective laser sintered single-face powder supplying device realized by adopting powder returning groove Download PDFInfo
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- CN102126293A CN102126293A CN2010105975724A CN201010597572A CN102126293A CN 102126293 A CN102126293 A CN 102126293A CN 2010105975724 A CN2010105975724 A CN 2010105975724A CN 201010597572 A CN201010597572 A CN 201010597572A CN 102126293 A CN102126293 A CN 102126293A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
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Abstract
The invention provides a selective laser sintered single-face powder supplying device realized by adopting a powder returning groove. The selective laser sintered single-face powder supplying device comprises a powder spreading roller, a powder supplying cylinder, a powder overflowing cylinder and the powder returning groove, wherein the single-face powder supplying device only needs to install one powder supplying cylinder and one powder overflowing cylinder at one side of a worktable and install one powder returning groove at the other side of the worktable; and the powder returning groove comprises a cylinder body, a movable bottom plate, and a control shaft connected with the movable bottom plate. In the invention, the equipment space is saved; the equipment dimension is reduced; the equipment complexity is reduced; the equipment cost is effectively reduced; the equipment reliability is improved; and the SLS (Set Location Stack) process requirements are further met.
Description
Technical field
The invention belongs to the advanced manufacturing technology field, relate to a kind of selective laser sintering single face dust feeder, relate in particular to a kind of employing and return the selective laser sintering single face dust feeder that the powder groove is realized.
Background technology
Selective laser sintering (Selective Laser Sintering is called for short SLS) is a kind of rapid shaping that is widely used (Rapid Prototyping is called for short RP) technology, and it is a raw material with the solid powder material, directly cad model is converted into entity.In theory, any powder of hot adhesion that is subjected to all has the raw-material possibility of the SLS of being used as, as macromolecule, pottery, metal dust and various composite powder material.In SLS technology, the powder feeding and spreading technology directly affects the SLS processing quality, and powder feeding and spreading device directly influences device structure, size and reliability etc.
In SLS technology, adopt usually and go up powder feeding and two kinds of automatic powder feeding systems of following powder feeding.On two-sided/following powder feeding is the most traditional existing SLS automatic powder feeding system, two-sided dust feeder has generally been installed a cover respectively and has been comprised a powder feeding cylinder in the workbench both sides, excessive powder cylinder and motor, piston or control valve, support devices such as fixture are at interior dust feeder, this two-sided dust feeder technology maturation, easy to operate, can effectively finish SLS powder feeding and spreading technical process, satisfy SLS layering sintered powder demand, but its pair powder feeding cylinder and the powder cylinder structure that overflows make that the overall dimensions of SLS forming machine is bigger, the machine complexity is higher, has machine manufacturing cost height, defectives such as poor reliability.
U.S. Pat 20050263933, US20050263934 have reported dust feeder on a kind of single face respectively, in these two patents, a dress powder platform has been installed as the powder conveying arrangement in the powder-laying roller top, quantitative upward dust feeder can be spread backhaul the required materials of powder and be discharged on the dress powder platform, when powder-laying roller removes journey shop powder backhaul is transported to the opposite side of workbench with powder, fixed blade powder-laying roller through the out-of-date powder that will adorn on the powder platform unload to workbench for spreading the powder use.This device only needs one and goes up the powder feeding cylinder, has reduced the SLS machine dimensions to a certain extent; But in this automatic powder feeding system, last powder feeding cylinder needs respectively powder quantitatively to be unloaded at twice to workbench and dress powder platform, and process is numerous and diverse; And the workbench both sides still need be installed an excessive powder cylinder respectively, have still occupied bigger machine space; Easily friction is impaired to unload powder blade and dress powder platform, the powder-laying roller operation and unload in the powder process powder be very easy to unrestrained, influence shop opaque amount, and working environment polluted.
Summary of the invention
The objective of the invention is to overcome the defective of existing SLS dust feeder, a kind of simple in structure, easy to operate selective laser sintering single face dust feeder is provided, when guaranteeing to satisfy SLS round trip powder feeding and spreading demand, reduces the SLS equipment size, reduce the equipment complexity, reduce equipment cost, improve equipment dependability.
The selective laser sintering single face dust feeder that the powder groove is realized is returned in a kind of employing provided by the invention, comprises powder-laying roller, powder feeding cylinder, excessive powder cylinder and returns the powder groove.The quantity of the wherein said powder feeding cylinder and the powder cylinder that overflows has only one, is positioned at a side of workbench; Return the quantity of powder groove and also have only one, be positioned at the opposite side of workbench.Wherein said time the powder groove comprises a cylinder body, a movable floor and the Control Shaft that is connected with movable floor.
In single face dust feeder provided by the invention, wherein said movable floor can be positioned at go back to upper and the next two positions of powder groove, and its activity can be controlled by motor or mechanical linkage or other modes by coupled Control Shaft.
The selective laser sintering single face dust feeder that the powder groove is realized is returned in a kind of employing provided by the invention, its course of work is: the powder feeding cylinder that is positioned at workbench one side provides a certain amount of powder to workbench one side, powder-laying roller begins journey shop powder from workbench one side, and the movable floor that this moment, Control Shaft was controlled back the powder groove is positioned at the next; When powder-laying roller is finished journey shop powder and pass through back the powder groove, unnecessary powder is unloaded to returning in the powder groove, the while powder-laying roller continues to move to back outside the powder groove; When powder-laying roller starts backhaul shop powder, Control Shaft is controlled back powder groove movable floor and is risen to upper, the movable floor and the table plane of returning the powder groove are positioned at a horizontal level, last time reclaimed powder as backhaul shop powder materials, powder-laying roller is finished backhaul shop powder and unnecessary powder is unloaded to excessive powder cylinder, so far finishes a powder feeding and spreading cycle.In the above-mentioned course of work, the powder feeding cylinder once provides the amount of powder can spread the powder materials for twice at least.The course of work of the invention described above can be adjusted according to factors such as dusty material character, technological requirements, as increasing the operation of several times powder pressing in the powder feeding cycle at a shop powder, adjust movable floor according to technical process demands such as shop powder, compactings and be positioned at the next time etc., these all are that those skilled in the art are attainable according to the present invention, and the technical scheme that reaches the object of the invention according to content disclosed by the invention all belongs to scope of the present invention.The powder feeding cylinder that the present invention relates to and confession powder mechanism, powder-laying roller and shop powder mechanism, time powder trough floor controlling mechanism etc. all adopt prior art.
A kind of employing provided by the present invention is returned the selective laser sintering single face dust feeder of powder groove realization both applicable to last dust feeder, also goes for down dust feeder; Time powder groove of the band movable floor that size of this device employing is little, simple in structure has replaced the double action of a side powder feeding cylinder and excessive powder cylinder, realized single face dust feeder round trip powder feeding and spreading function, reduce the cleaning and the powder recovery operation of two excessive powder cylinders in the existing equipment simultaneously, improved the utilization rate of material to a certain extent; This device has been saved the device space, reduced SLS equipment overall dimensions, reduced the equipment complexity, effectively reduce equipment cost, the reliability of equipment is necessarily promoted, and has further satisfied the SLS technological requirement.
Description of drawings
Figure 1A-D adopts the device schematic diagram of automatic powder feeding system under the single face for the present invention;
Fig. 2 A-D adopts the device schematic diagram of automatic powder feeding system on the single face for the present invention.
The specific embodiment
Shown in Figure 1A-D, 1 is following powder feeding cylinder, and 2 are the powder cylinder that overflows, 3 is powder-laying roller, and 4 are back the powder groove, returns powder groove 4 and comprises cylinder body 5, movable floor 6 and the Control Shaft 7 that is connected with movable floor, following powder feeding cylinder 1 and excessive powder cylinder 2 are positioned at the left side of working cylinder 9, go back to the right side that powder groove 4 is positioned at working cylinder 9.Shown in Figure 1A, powder feeding cylinder 6 is at first supplied with the quantitative powder 8 of workbench 10, and the amount of the powder that supplies is a bit larger tham the required powder amount of using of shop powder twice, and powder-laying roller begins right lateral shop powder from the left side, and meanwhile Control Shaft 7 movable floor 6 of controlling back the powder groove is positioned at the next; When the powder groove is passed through back in powder-laying roller 3 operations, unnecessary powder 8 is unloaded to returning in the powder groove, powder-laying roller 3 continues to move to go back to powder groove 4 outsides simultaneously, shown in Figure 1B; Shown in Fig. 1 C, powder-laying roller 3 begins left lateral shop powder from the right side, simultaneously Control Shaft 7 movable floor 6 of control back the powder groove rises to upperly, and the movable floor 6 and the table plane 10 of returning powder groove 4 this moment are positioned at a horizontal level, and unnecessary powder 8 is spread the powder materials as left lateral; Powder-laying roller 3 is finished left lateral shop powder and unnecessary powder 8 is unloaded to excessive powder cylinder 2, shown in Fig. 1 D, so far finishes a powder feeding and spreading cycle.Equipment requires to carry out repeatedly the powder feeding and spreading operation by said process according to sintering process, until finishing whole SLS product.
Shown in Fig. 2 A-D, 1 ' be last powder feeding cylinder, 2 are the powder cylinder that overflows, 3 is powder-laying roller, and 4 are back the powder groove, returns powder groove 4 and comprises cylinder body 5, movable floor 6 and the Control Shaft 7 that is connected with movable floor, last powder feeding cylinder 1 and excessive powder cylinder 2 are positioned at the left side of working cylinder 9, go back to the right side that powder groove 4 is positioned at working cylinder 9.Shown in Fig. 2 A, powder feeding cylinder 6 is at first supplied with the quantitative powder 8 of workbench 10, and the amount of the powder that supplies is a bit larger tham the required powder amount of using of shop powder twice, and powder-laying roller begins right lateral shop powder from the left side, and it is the next that meanwhile Control Shaft 7 is controlled go back to movable floor 6 seats of powder groove; When the powder groove is passed through back in powder-laying roller 3 operations, unnecessary powder 8 is unloaded to returning in the powder groove, powder-laying roller 3 continues to move to go back to powder groove 4 outsides simultaneously, shown in Fig. 2 B; Shown in Fig. 2 C, powder-laying roller 3 begins left lateral shop powder from the right side, and Control Shaft 7 movable floor 6 of control back the powder groove is positioned at upperly simultaneously, and the movable floor 6 and the table plane 10 of returning powder groove 4 this moment are positioned at a horizontal level, and unnecessary powder 8 is spread the powder materials as left lateral; Powder-laying roller 3 is finished left lateral shop powder and unnecessary powder 8 is unloaded to excessive powder cylinder 2, shown in Fig. 2 D, so far finishes a powder feeding and spreading cycle.Equipment requires to carry out repeatedly the powder feeding and spreading operation by said process according to sintering process, until finishing whole SLS product.
Claims (3)
1. a selective laser sintering single face dust feeder that adopts back the powder groove to realize comprises powder feeding cylinder, excessive powder cylinder, powder-laying roller, and it is characterized in that: this device has only a powder feeding cylinder and an excessive powder cylinder, is positioned at a side of workbench; This device comprises that also one is returned the powder groove, is positioned at the opposite side of workbench.
2. single face dust feeder according to claim 1 is characterized in that described time powder groove comprises a cylinder body, a movable floor, a Control Shaft that is connected with movable floor.
3. single and dust feeder according to claim 1 and 2, it is characterized in that: described movable floor can be positioned at go back to upper and the next two positions of powder groove, when described powder-laying roller begins when returning one lateral movement of powder groove from the powder feeding cylinder outside, the movable floor that returns the powder groove is positioned at the next, for Powder Recovery, when described powder-laying roller returned the beginning of the powder groove outside certainly to one lateral movement of powder feeding cylinder, the movable floor that returns the powder groove was positioned at upper, with the work top horizontal alignment, reclaim powder as backhaul shop powder materials.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105975724A CN102126293A (en) | 2010-12-21 | 2010-12-21 | Selective laser sintered single-face powder supplying device realized by adopting powder returning groove |
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| CN2010105975724A CN102126293A (en) | 2010-12-21 | 2010-12-21 | Selective laser sintered single-face powder supplying device realized by adopting powder returning groove |
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| CN102126293A true CN102126293A (en) | 2011-07-20 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699531A (en) * | 2012-05-28 | 2012-10-03 | 华南理工大学 | Welding method for melting metal powder by laser scanning and device thereof |
| CN103862045A (en) * | 2014-03-13 | 2014-06-18 | 湖南华曙高科技有限责任公司 | Powder supplying and spreading method of quick forming equipment |
| CN104760297A (en) * | 2015-04-10 | 2015-07-08 | 钱波 | Nylon sintering shaping machine with auxiliary power spreading device |
| CN105039970A (en) * | 2015-07-02 | 2015-11-11 | 西安交通大学 | Dual-beam laser selective melting and moulding equipment with exchangeable powder cylinder |
| CN105172149A (en) * | 2015-10-24 | 2015-12-23 | 党金行 | Sliding core powder feeding type 3D printing machine power feeding device |
| CN105793018A (en) * | 2013-12-05 | 2016-07-20 | 米其林集团总公司 | Machine and method for powder-based additive manufacturing |
| CN107696483A (en) * | 2017-11-24 | 2018-02-16 | 安徽科元三维技术有限公司 | SLS printing machine worktables with cleaning mechanism |
| CN109604601A (en) * | 2019-01-21 | 2019-04-12 | 福建慧思通三维技术有限公司 | A kind of metal 3D printer for making energy source with twin-laser |
| CN110027213A (en) * | 2019-05-08 | 2019-07-19 | 苏州中瑞智创三维科技股份有限公司 | 3D printing equipment two-way powder laying structure and its method suitable for more materials |
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| US5252264A (en) * | 1991-11-08 | 1993-10-12 | Dtm Corporation | Apparatus and method for producing parts with multi-directional powder delivery |
| US20050263933A1 (en) * | 2004-05-28 | 2005-12-01 | 3D Systems, Inc. | Single side bi-directional feed for laser sintering |
| US7034246B2 (en) * | 2004-08-10 | 2006-04-25 | The Boeing Company | Selective laser sintering reduced volume feed mechanism |
| CN201300207Y (en) * | 2008-10-30 | 2009-09-02 | 华中科技大学 | Selective laser melting rapid molding device for metal parts |
| CN202028770U (en) * | 2010-12-21 | 2011-11-09 | 湖南美纳科技有限公司 | Selective laser sintering single-face powder-feeding apparatus realized by using powder-returning groove |
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2010
- 2010-12-21 CN CN2010105975724A patent/CN102126293A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5252264A (en) * | 1991-11-08 | 1993-10-12 | Dtm Corporation | Apparatus and method for producing parts with multi-directional powder delivery |
| US20050263933A1 (en) * | 2004-05-28 | 2005-12-01 | 3D Systems, Inc. | Single side bi-directional feed for laser sintering |
| US7034246B2 (en) * | 2004-08-10 | 2006-04-25 | The Boeing Company | Selective laser sintering reduced volume feed mechanism |
| CN201300207Y (en) * | 2008-10-30 | 2009-09-02 | 华中科技大学 | Selective laser melting rapid molding device for metal parts |
| CN202028770U (en) * | 2010-12-21 | 2011-11-09 | 湖南美纳科技有限公司 | Selective laser sintering single-face powder-feeding apparatus realized by using powder-returning groove |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102699531A (en) * | 2012-05-28 | 2012-10-03 | 华南理工大学 | Welding method for melting metal powder by laser scanning and device thereof |
| CN105793018A (en) * | 2013-12-05 | 2016-07-20 | 米其林集团总公司 | Machine and method for powder-based additive manufacturing |
| CN105793018B (en) * | 2013-12-05 | 2018-10-30 | 米其林集团总公司 | Device and method for powder base increasing material manufacturing |
| CN103862045A (en) * | 2014-03-13 | 2014-06-18 | 湖南华曙高科技有限责任公司 | Powder supplying and spreading method of quick forming equipment |
| CN103862045B (en) * | 2014-03-13 | 2017-01-18 | 湖南华曙高科技有限责任公司 | Powder supplying and spreading method of quick forming equipment |
| CN104760297A (en) * | 2015-04-10 | 2015-07-08 | 钱波 | Nylon sintering shaping machine with auxiliary power spreading device |
| CN105039970A (en) * | 2015-07-02 | 2015-11-11 | 西安交通大学 | Dual-beam laser selective melting and moulding equipment with exchangeable powder cylinder |
| CN105172149A (en) * | 2015-10-24 | 2015-12-23 | 党金行 | Sliding core powder feeding type 3D printing machine power feeding device |
| CN105172149B (en) * | 2015-10-24 | 2019-08-06 | 山东省机械设计研究院 | Slide core powder feeding formula 3D printer powder feeder unit |
| CN107696483A (en) * | 2017-11-24 | 2018-02-16 | 安徽科元三维技术有限公司 | SLS printing machine worktables with cleaning mechanism |
| CN109604601A (en) * | 2019-01-21 | 2019-04-12 | 福建慧思通三维技术有限公司 | A kind of metal 3D printer for making energy source with twin-laser |
| CN110027213A (en) * | 2019-05-08 | 2019-07-19 | 苏州中瑞智创三维科技股份有限公司 | 3D printing equipment two-way powder laying structure and its method suitable for more materials |
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Application publication date: 20110720 |